My desktop is 11 years old this year. I added a network card when the port on the motherboard broke and switched OS when the OS became no longer supportable. Audio output is no longer possible without also adding a sound card, given the audio ports are all fried. Memory and CPU aren't meaningfully upgradable without wholesale motherboard replacement. That's not happening piecemeal. If you have experienced these sorts of issues, you'll understand the challenges with using and maintaining hardware over the longer term. Piecemeal upgrade ceases to be a meaningful option on that time scale. It's not cost effective, and at some point you just need a new machine. Does that make sense?
If anything, I would think using something for as long as possible instead of buying and generating large amounts of e-waste puts me more in the Greatest Generation category. Otherwise, I'm sure I would love to have the latest and greatest all the time too, but on a stats basis, also not being able to afford it puts me less in the boomer category, and more in the younger generation category, no?